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A Octoviginticentillion (1 Octoviginticentillion) is 10 to the power of 387 (10^387). This is a tremendously astronomical number!

How many zeros in a Octoviginticentillion?

There are 387 zeros in a Octoviginticentillion.

What's before Octoviginticentillion?

A Septemviginticentillion is smaller than a Octoviginticentillion.

What's after Octoviginticentillion?

A Novemviginticentillion is larger than a Octoviginticentillion.


A Octoviginticentillionaire is someone whos assets, net worth or wealth is 1 or more Octoviginticentillion. It is unlikely anyone will ever be a true Octoviginticentillionaire. If you want to be a Octoviginticentillionaire, play Tap Tales!

Is Octoviginticentillion the largest number?

Octoviginticentillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Octoviginticentillion written out

Octoviginticentillion is written out as:


Big Numbers

This is just one of many really big numbers!

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